Internal-combustion engine



W. E. JORY' INTERNAL COMBUSTION ENGINE Apr. l7, 1923.

FiledTJune'G, 1922 4 Sheets-Sheet 1 INVE/VTU/P Wink/0R) aura s.

W. E. JORY INTERNAL COMBUSTION ENGINE Apr. 17, 1923.

4 Sheets Sheet 2 FiledfJune- 6, 1922 1 lllllllliivl llr JORIY Apr. .117,1923;

INTERNAL COMBUSTION ENGINE.

Filed June' 6, 1922 4 Sheets-Sheet rs A r. 17, 1923. 2,452,2an2

-vv E. JORY INTERNAL COMBUSTION ENGINE FiledUune' 6, 1922 4 Sheets-Sheet4 uvvewrafi wLaaRr Patented Apr. 17, 1%23.

WILLIAIE E. JURY, OF MARTINEZ, CALIFDRNIA.

INTERNAL-COMBUSTION ENGINE.

Application filed June 6,

T 0 all whom it may concern:

Be it known that 1, WILLIAM E. JonY, a citizen of the United States,residing at Martinez, in the county of Contra Costa and State ofCalifornia, have invented new and useful Improvements inInternal-Combustion Engines, of which the following is a specification.

This invention relates to improvements in. internal combustion enginesand more particularly to novel means for connecting the piston rods withthe drive shaft, which will serve as a substitute for the ordinary crankshaft arrangement and will provide for a smooth, more effective andcontinuous application of power to the drive shaft during each movementof'the shaft through 860 of arc, whereby vibration is lessened and again in efliciency is obtained.

An object of the invention is to provide simply constructed andinexpensive means of connection between the piston-rods and drive shaft,which means will eliminate vibration and intermittent power applicationsuch as usually attends the use of the ordinary crank shaft arrangement,prevents loss of power and causes each piston or cylinder to move theshaft under a continuous power thrust through 90 of arc.

The invention possesses other advantages and features some of which,with the fore going will be set forth at length in the followingdescription where I shall outline in full that form of the inventionwhich I have selected for illustration in the drawing accompanying andforming a part of the present specification. In said drawings I haveshown one form of the construction of my invention, but it isto beunderstood that I do not limitrnyself to such form since the inventionas expressed in the claims may be embodied in a plurality of forms. 1

Referring to the drawings:

Figure 1 represents a fragmentary side elevation of the mechanism of myinvention showing it as when applied to an internal combustion engine,part of which is shown.

Figure 2 represents an enlarged side elevation of the mechanism of myinvention as when at the beginning of a power stroke.

Figure 3 represents an enlarged side elevation of the mechanism of myinvention as when at the end of a power stroke.

Figure 4: represents a side elevation of 1922. Serial No. 566,207.

one of the piston rods showing the construction at the lower endthereof.

Figure 5 represents a view in elevation of the rod as shown in Figure 4but taken at right angles thereto and showing parts of the mechanism ofmy invention as associated therewith.

Figure 6 is a sectional view taken on line 6-6 of Figure 7.

Figure 7 is a sectional view taken on line 7-7 of Figure 6. Both Figures6 and 7 showing in detail the construction of the power thrust member ofthe invention.

Figure 8 is a side elevation of the cam locking member.

Figure 9 is a top plan view of the cam locking member.

Figure 10 is a side elevation of a detail of the invention.

Figure 11 is an edge view of the detail shown in Figure 10.

Referring to the embodiment of the invention shown in the accompanyingdrawings, 1 designates the piston of an internal combustion engine, partof which is shown in Figure 1 of the drawings, 2 the piston orconnecting rod therefor and 3 the drive shaft of the engine which isconnected with the piston rod by the means of my invention. a

In Figure 1 two pistonsand other associated parts are shown as a part ofan internal combustion engine, but I wish it understood that I may carryout my invention with multiple cylinder engines regardless of the numberof cylinders employed, although I prefer toemploy a four cylinder engineso that each cylinder may be made to apply a continuous 9 O powermovement to the shaft.

My invention takes into account a special construction at the lower endof the piston rod and as shown in the drawings, the rod is enlarged atits lower end and formed with spaced downwardly projecting portions 4-and 5, at the upper end of which and on opposite sides thereof, there isprovided an arcuate shoulder 6. Extending transversely through themembers 4: and 5, near the lower ends of said members, is a pin 7 uponwhich pin is mounted a specially constructed thrust member 8. The thrustmember 8 comprises an arcuate body portion 9 which is adapted to bearupon the arcuate shoulder 6,- Extending from the arcuate body portion 9are spaced parallel side portions 10 having alined corresponding arcuateslots 11 in which end portions of the pin 7 are received whereby saidmemher 8 is movable upon the pin and with relation to the portions 41and 5 of the piston rod. The lower or free ends 12 of said members 10are slightly curved and adapted to engage upon cam members 13 and 14-fixed to the respective sides of an eccentric disc 15, which latter iskeyed to the shaft 3. Surrounding the disc 15 is an eccentric ring 16having an integral or fixed extension 17 through which the pin 7extends. The extension 17 engages between and with the portions 4 and 5as particularly shown in Figure 5.

The ends of the pin 7 extend beyond the side portions 10 of the thrustmember 8 and engage in guide grooves 18provided in opposed upright guidemembers 19 which are fixed in any suitable manner to the crank shaft andother stationary parts of the engine. The grooves 18 in said members 19are elliptical in form and when the piston rod descends on its powerstroke and rises upon its return stroke, it will move downwardly,outwardly and inwardly and upwardly, outwardly and inwardly, describingan elliptical path.

eans is provided for locking the cam members in such manner that thedisc 15, ring 16 and cam members will move as one upon a power stroke ofthe piston rod Mounted upon the thrust member 8 is a U-shaped lockingmember 20. The arm portions 21 of the locking member 20 are slightlycurved and adjacent their free ends provided with openings 22 throughwhich the pin 7 extends. The arms 21 are mounted so as to lie betweenthe outer sides of the members 4: and 5 and the inner face of the sides10 of the thrust member. The end edges of the arms 21 are rounded as at23 and said rounded portions terminate in spaced shoulders 24-. Therounded portions are adapted to engage cylindrical pins or projections25 which are rigidly carried on the inner faces of the sides 10, seeFigures 2 and 5. The bight portions 26 of the U shaped locking member 20extends beyond the arms 21 and their projecting portions are adapted toengage in notchesor recesses 27 provided in the opposed faces of thoseportions of the cams 13 and 14 which project beyond the peripheries ofthe eccentric member. The notches or recesses 27' are peculiarly shapedso as to function as will be later more particularly pointed out.

Asa means for setting the thrust member and locking member for operationupon return of the mechanism to position such that the power stroke maybe commenced, I provide trip members 28 constructed as shown in Figures10 and 11. These members, in the form of flat elongated plates, arepivoted at certain ends as at 29 to the inner faces of the sides 10 andlie between said sides and outer sides of the arms 21 of the member 20.Intermediate of their ends the members 28 are enlarged and provided withlongitudinal slots 30, said slots receiving the pin 7. The lower or freeends of the members 28 are adapted to extend beyond the edges 12 of thesides 10 so as to engage the cams 13 and 14: as will be later more fullydescribed.

At the beginning of a power stroke the piston rod 2, as shown in Figure2, the thrust member 8, pin 7 and associated parts are disposed at theupper ends of the guides 19 with the pins 7 engaged in the grooves 18.The cams 13 and 14 are of a substantially triangular shape save that theworking sur faces of the cam have a slight camber. The thrust member 8will engage the upper side of the cam adjacent one corner thereof andsaid engaged surface ofthe cam and the edges 12 of the thrust member arein a plane substantially at right angles to the direction of movement ofthe thrust member on its power stroke. The locking member 20 is engagedinthe recess 27 so that the cams and the eccentric disc are locked formovement with the eccentric ring. It will thus be seen thatwhen thepiston 2 descends in its power stroke, the pin 7 will move down wardlyand outwardly and then inwardly in one side of the elliptical grooves 18and that during such movement the member 8 will rock or shift in suchmanner that it will apply power to the cams during the movement of themember 8 from the upper ends of the guides to the lower ends thereof.

This rocking of the member 8 is permitted by the arcuate slots 11through which the pin 7 extends. When the member 8 moves through 90, theportion 26 of the locking member disengages from the notches 27 due tothe rocking or turning movement of the thrust member 8. At the beginningof the power stroke, the pins or projections 25 are engaged with one ofthe shoulders 24- on the arms 21 of the member 20 and as said member 8rocks or turns said pins or pro jections in moving over the roundedportions 23 will move the member 20 clear of the notches 27 and intoposition shown in Figure 3. At this time the edges 12 of the member willhave moved away from the corner A of the cam so as to engage or heopposite the mid portion of the normally upper side of the cam. When themember 20 disengages the cams, the eccentric ring is free from fixedconnection in its return stroke, the ring will move relative to thedisc, which latter continues in its rotation, and the parts willbereturned to normal position. When the member 8 has been moved through90 of arc, the corresponding member of the next cylinder working underpower stroke, will begin its movement through 90 arc. Just before thecams move into normal position near the completion of the return strokeof the piston, the projecting ends of the members 28 will engage nearthe corner A of the cams in such manner as to effect a leverage upon themember 8 and locking member 20, whereby said locking member 20 will slipinto the locking notches of recesses 27 and the member 8 will move againinto engagement with the upper edge of the cam as shown in Figure 2.

I claim:

1. In an internal combustion engine, a piston rod, an engine shaft, aneccentric disc ixed to the shaft, an eccentric ring loosel surroundingthe disc, a pin carried by the piston rod, a connection between said pinand the ring, a thrust member mounted so as to rock on said pin, a cammember fixed on the disc and with which said thrust member is adapted toen age, a guide having an elliptical guide groove in which the pinextends, and means for preventing relative movement of the ring and discthroughout the down stroke of the piston rod and permitting relativemovement thereof upon the up stroke of said rod.

2. In an internal combustion engine, a piston rod, an engine shaft, aneccentric disc fixed to the shaft, an eccentric ring loosely surroundingthe disc, a pin carried by the piston rod, a connection between said pinand the ring, a thrust member mounted so as to rock on said pin, a cammember fixed on the disc and with which said thrust member is adapted toengage, a guide having an elliptical guide groove in which the pinextends, means for preventing relative movement of the ring and discthroughout the down stroke of the piston rod and permitting relativemovement thereon upon the up stroke of said rod and means which when therod returns to normal position will automatically lock said ring anddisc against relative movement and dispose the thrust member in camengaging position.

3. In an internal combustion engine a pisto rod, a drive shaft, aneccentric disc fixed on the drive shaft, an eccentric ring looselymounted on the disc, a. connection between the ring and piston rod, athrust member pivoted on the piston rod, a cam fixed on the disc andwith which said thrust member engages upon the down stroke of the rodbut is operatively disassociated therefrom upon upstroke of the rod anda locking member on the rod having locking engagement with the &

cams so as to provide relative movement of the disc and ring during thedown stroke of the piston rod and automatically disengaging the cam topermit relative movement of said parts upon the up stroke of the pistonrod, and a guide with which the piston rod is connected, arranged tomove the rod in an eccentric path.

4L. In an internal combustion engine a piston rod, a drive shaft, aneccentric disc fixed on the drive shaft, an eccentric ring looselymounted on the disc, a connection between the ring and piston rod, athrust member pivoted on the piston rod, a cam fixed on the disc andwith which said thrust member engages upon the down stroke of the rodbut is operatively disassociated therefrom upon the upstroke of the rodand a locking member on'the rod having locking engagement with the camsso as to provide relative movement of the disc and ring during the downstroke of the piston rod and automatically disengaging the cam to permitrelative movement of said parts upon the up stroke of the piston rod, aguide with which the piston rod is connected, arranged to move the rodin an eccentric path and a trip member operatively associated with thepiston rod, thrust and locking member so as toautomatically move saidthrust and locking member into proper position at the end of the returnstroke of the piston rod.

5. In an internal combustion engine a piston rod, a pin carried by andprojecting on opposite sides of the piston rod, a drive shaft, aneccentric disc fixed to the drive shaft, an eccentric ring looselymounted upon the disc, an a-pertured extension fixed to the ring andthrough which said pin extends, a thrust member having arcuate slotstherein through which the pin extends, said thrust member and piston rodhaving arcuate opposed shoulders engaging one another, a cam memberfixed to the disc and with which said thrust member is adapted to engagethroughout the down thrust of the piston rod, said cam member having anotch therein, a looking member pivoted on the pin and arranged toengage in said notch throughout the down stroke of the piston rod and tomove clear of the notch on the upstroke of the piston rod a fixed guidemember having an elliptical guide groove therein in which the pinengages and means which when the piston rod completes its return strokewill automatically set the thrust member into engagement with the camand move the locking member so as to extend into said notch.

WILLIAM E. J ORY.

